https://www.earthtoolsmaker.org/tags/segmentation/ Recent content in Segmentation on earthtoolsmaker Hugo en-us Mon, 28 Sep 2026 00:00:00 +0000 https://www.earthtoolsmaker.org/posts/mapping-a-salt-marsh-centimetre-by-centimetre/ Mon, 28 Sep 2026 00:00:00 +0000 https://www.earthtoolsmaker.org/posts/mapping-a-salt-marsh-centimetre-by-centimetre/ <p>Near the village of Wierum, on the Frisian coast of the Wadden Sea, a drone flies over the salt marsh every few months. Each flight becomes an orthophoto at <strong>1.4 cm per pixel</strong>: about 222,000 by 98,000 pixels, more than 20 billion in total. For <a href="https://www.earthtoolsmaker.org/projects/coastal_erosion_monitoring/">CODAP</a>, the Coastal Data Portal we built with <a href="https://www.rijkswaterstaat.nl/en">Rijkswaterstaat</a> and <a href="https://lumax.ai/">Lumax AI</a>, a segmentation model labels every one of those pixels as mudflat, salt marsh, macro-algae, shells, dike grass or asphalt, so that coastal managers can compare surveys in a browser.</p>